Invention Grant
US08174475B2 D/A conversion circuit, data driver, integrated circuit device, and electronic instrument
有权
D / A转换电路,数据驱动器,集成电路器件和电子仪器
- Patent Title: D/A conversion circuit, data driver, integrated circuit device, and electronic instrument
- Patent Title (中): D / A转换电路,数据驱动器,集成电路器件和电子仪器
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Application No.: US12251865Application Date: 2008-10-15
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Publication No.: US08174475B2Publication Date: 2012-05-08
- Inventor: Motoaki Nishimura , Haruo Kamijo , Katsuhiko Maki
- Applicant: Motoaki Nishimura , Haruo Kamijo , Katsuhiko Maki
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2007-268761 20071016; JP2008-135536 20080523
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A D/A conversion circuit includes a first D/A converter and a second D/A converter that respectively output a first voltage and a second voltage. An ith two-input selector among a plurality of input selectors of the first D/A converter selects a (4i+1)th input voltage or a (4i+3)th input voltage based on input data, and outputs the selected input voltage to a selector of a selector block in the subsequent stage. An ith three-input selector among a plurality of three-input selectors of the second D/A converter selects a 4ith input voltage, a (4i+2)th input voltage, or a (4i+4)th input voltage based on the input data, and outputs the selected input voltage to a selector of a selector block in the subsequent stage.
Public/Granted literature
- US20090096817A1 D/A CONVERSION CIRCUIT, DATA DRIVER, INTEGRATED CIRCUIT DEVICE, AND ELECTRONIC INSTRUMENT Public/Granted day:2009-04-16
Information query
IPC分类: